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(12^4)*(3^-2)*(4^-2)

$$(12^4)*(3^{-2})*(4^{-2}) \\\\
= \dfrac{12^4}{(3^2)(4^2)} \\\\
= \dfrac{12^4}{(3*4)^2} \\\\
= \dfrac{12^4}{12^2} \\\\
= 12^{4-2} \\\\
= 12^{2} \\\\
= 144$$

Melody is correct, here......!!!!!

Well,

force = mass * acceleration

So I suppose it depends on the coasters mass.  I don't know, I am no physicist.   

was ist 555 zum quadrat

$$555^2 = 555*555 = 308025$$ 

555 zum Quadrat ist 308025

Hey, Melody......what are you "howling" about ???......we might just be "honorary" wolves....not "full-fledged"

NO

1 is not a prime number.

The smallest prime number is 2 :)

There is nothing to solve  :)

A fraction will have a terminating decimal only if we can write the denominator as (2ⁿ x 5ⁿ) where  n ≥ 0

To see why this is true......note that all terminating decimals can be written as   A / 10ⁿ  = A / (2 * 5)ⁿ = A / (2ⁿ x 5ⁿ) where A is the integer formed by moving the decinal point in the non-repeating decimal n places to the right.

For instance

1/4 = 1/(2² x 5⁰)  = .25 = 25 / (2² x 5²) = 25 / 100

And

1/5 = 1/(2⁰ x 5¹) = .20 = 20 / (2² x 5²) = 20 / 100

But, note that fractions such as 1/6,  1/13, 1/23  will repeat because the denominators cannot be factored solely in terms of 2 and 5.

So I am a wolf now?  Must'a happened while I was sleeping LOL. 

Happy tells me there are no dues anyway - good  thing cause I'm skint.  :))))

Gee thanks CPhill. :))

Is that right tiddle? I will have to look it up :)

It would have to be a regular decagon - all sieds the same length

Here is one formula

$$\\6x^2-36x^2\\
=(6-36)x^2\\
=-30x^2\\$$

If this is now equal as below

$$-30x^2=42x^2y$$

divide both sides by 6x^2

$$\\-5=7y\\
y=\frac{-5}{7}$$

So the only time they will be equal is when y=-5/7

15.4x-13.7=14x-17.2 x=-((5/2))

-72/8 = -9

Let's try this again.....18 less than three times a number is...  3n - 18....so we have

3n - 18 = 2n

Can you take it from here???

We have

sin(55) = 8.3 / c      rearrange

c = 8.3 / sin (55)  = about 10.1

Thank you - Now I am blushing           

We have

H_max = V₀²sin²Θ / 2g  = (52m/s)² sin²(30)/[2(9.8 m/s²)] = 2704m*(1/2)² /[2* 9.8]  = about 34.49 m

97/100, 7/8 , 19/20, 8/10, 9/10

Well. since 10 and 20 both divide 100....we should focus on 100 and 8

100 factors as 2² x 5²

And 8 factors as 2³

So.......picking each ddifferent factor that has the greatest exponent on it, we have

2³ x 5²  =  8 x 25  = 200

And that's the (lowest) common denominator

Let a be the number

18-3a = 2a

18 = 2a+3a

18 = 5a

a = 18/5

a= 3.6

that is a great answer.  thanks anon.

i dont know please help me!

SURE!!!!:)

Good answer anon although not many calcs do base three so you cannot just plug the numbers in and get an answer.    

I am going to write the question sightly differently

$$\\If\;\;\;y=log_{\textcolor[rgb]{0,1,0}3}3^6\\
then\\
3^6=\textcolor[rgb]{0,1,0}{3}^y\\\\
$Now it is very easy to see that y=6$\\
$so$\\
log_33^6=6\\\\\\
$Remember: $\quad \boxed{If \quad y=log_ba\quad then \quad a=b^y}\\\\
$ You say this as \qquad y=log a base b$\\\\
$Also remember : $\boxed{\mbox{A log is a power}}$$

what kind of math is this

Hi anon

Not all fractions have repeating decimals.  What about 1/2  that is just 0.5   nothing is repeating :)

$${\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{7}}}} = -{\mathtt{0.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$       but this is a repeating decimal just like you said